I understand what you mean, but to be more on the safe side why not take the two tubes and do most of the cuts and sell them as two pieces of cut tubing, the buyer has to weld them together to make it into a reciever. Just a thought.it's NOT a gun Gunter it's scrap metal !! and we dont need em knowing too much about this or they will say that steel tubing is a receiver. think about it! it's JUST tube . it becomes a receiver once you cut your hole for the fire control parts.